有机和蛋白质之间通过原子诱导的键结合:数据库调查和量子化学计算研究
Zijian Han1,2, Jintian Li1,2, Qingyi Liao3
1State Key Laboratory of Drug Research, Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
Journal of medicinal chemistry
|July 3, 2025
概括
药物设计中的化通过一种新的键诱导键 (HBiFB) 来增强生物活性. 这种相互作用加强了联体蛋白结合,为优化化药物提供了新的途径.
科学领域:
- 药用化学 医学化学
- 计算化学计算化学
- 结构生物学 结构生物学
背景情况:
- 化是药物设计中广泛使用的策略,用于增强分子性质.
- 能增强生物活性的确切机制,特别是蛋白质结合接口,仍然不完全理解.
- 观测到的有机和蛋白质结合口袋之间的相互作用包括F···H和F··O/N/S模式.
研究的目的:
- 阐明对药物设计中的生物活性贡献的潜在机制.
- 识别和描述涉及蛋白质 - 连接体复合体中的原子的新型非共价相互作用.
- 研究这些相互作用的能量贡献和结构特征.
主要方法:
- 对含有有机的现有蛋白质连接体结构的数据库分析.
- 量子化学计算以建模和分析观察到的相互作用的电子和能量特性.
- 相互作用模式的表征,包括键和键.
主要成果:
- 发现了一种新的相互作用,称为键诱导键 (HBiFB).
- HBiFBs涉及一个由键捐赠者和键接受者组成的特定伪口袋.
- 这些相互作用表现出显著的结合能 (-1.5 到 -4.0 kcal/mol) 并持续提高连接物-蛋白相互作用约1 kcal/mol.
- HBiFB的特点是带有正电荷的σ孔,键关键点和电子再分配.
结论:
- 键诱导的键 (HBiFB) 是药物化学中一个显著的,以前未被识别的非共价相互作用.
- HBiFBs有助于增强联体蛋白结合,解释了化所见的部分生物活性增强.
- 这一发现为合理设计和优化化药物提供了新的机械洞察力和潜在的可概括原则.
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